{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54973",
    "entityType": "User",
    "nonce": "0x7b0bed055b6865c6533fc58afc15bcb9b62b23cb630bc87f896edc03c13c9a92",
    "signature": "0x1b0c9f66bfba31422ebb7b4abbb24cbfd5e34c3048f103b9f77ac3ba8726d8dc047b7592bf8c9d70410f58bf2a10b513417ed44f0038e7488653e4cb2e51c29d1c",
    "signer": "0xbd126Da914dEF5554d9f1d0c31544e8646419780",
    "userId": "81556"
  }
}